Specifications
1820/1822 Operator’s Manual
1820/1822 Specifications
Except where otherwise noted, the following specifications apply to model 1820, 1822,
Differential Amplifiers.
The specifications are valid for instruments when the following conditions have been met:
1820-PR2 and 1822-PR2
The instrument is being operated from a power source which meets the line voltage and frequency specifications.
The instrument has been operating for at least 30 minutes in an environment which is within the operating
environmental specifications.
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The instrument has been calibrated within the last 12 months. Calibration was performed in a controlled environment
of 25 +5°C.
Nominal Characteristics
Nominal characteristics describe parameters and attributes which have are guaranteed by design, but do not have
associated tolerances.
General
Input Configuration:
Offset Capability
+ Input Coupling Selections
- Input Coupling Selections
Input Connectors
Maximum Non-Destruct Input Voltage
Output Configuration
Output Impedance
Intended Output Load
Output Connector
Amplifier Gain
Input Attenuation
Bandwidth Limit Filters (Upper Limit)
Bandwidth Limit Filters (Lower Limit)
Bandwidth Limit Filter Characteristics
Autobalance
Effective Gain Indicator
(1822 and 1822-PR2 models only)
True Differential, + and - Inputs.
Precision Voltage Generator (1822 and 1822-PR2
models), or external offset reference source (1820
and 1820-PR2 models) can be selected as - input
source in VCOMP mode.
The Precision Voltage Generator (1822 and 1822-
PR2 models), or external offset reference source
(1820 and 1820-PR2 models) can be used
provide true differential offset.
AC, Off (Precharge),
AC, Off (Precharge), DC, VcouP
BNC. + Input incorporates Probe Attenuation
Coding sensing connector (1822 Only).
Withstands up to +250 V.
Automatic input disconnect with manual reset
Single Ended, Ground referenced.
50
50f)
BNC
X1, X10, XI00, or X1000
+1 or +10
100 Hz, 300 Hz, 1 KHz, 3 KHz, 10 KHz,
30 KHz, 100 KHz, 300 KHz, 1 MHz, 3 MHz
0.1 Hz, 1 Hz, 10 Hz, 100 Hz, 1 KHz, 10 KHz
Single pole, 6 dB/octave
Amplifier initiates an automatic balance cycle
when either gain button is depressed.
LEDs indicate the effective gain by factoring
Probe Attenuation, Attenuator and Gain settings.
(Probes must have coding connectors.
+ 1, + 10, + 100, and + 1000 probes are
recognized.)
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